Free realtime software for linux

Realtime Application Interface project allows applications with strict timing constraints to be run on Linux.
A real time system is able to guarantee the timing requirements of the processes under its control.
RTAI provides an API and the necessary kernel modifications to accommodate such requirements.
Enhancements:
- Improvements were made to netrpc.
- Context switching between hard and soft real-time, handling of TSC errors, and POSIX compatibility have been improved.
- There are numerous minor bugfixes.

Race Timing lets you manage races by describing a race and the rules associated with it. You can time the racers and provide realtime standing of the race participants.

You can manage various race events (pilot changes, refuelling, laps, intermediate sprints, etc.) and broadcast various information to the participants. Race Timing is best used with transponders, but manual operation is also provided.

PureAdmin is a graphical utility used to administer and monitor your PureFTPd ftp server.
PureAdmin is a graphical tool used to make the management of PureFTPd a little easier.
PureAdmin project features a user manager, viewing of activities (uploads/downloads) and logfile viewing (updated in realtime).
It is not dependant on GNOME (only GTK+ 2.x) and it is developed with the GNOME Human Interface Guidelines in mind.
Enhancements:
- Fixed a startup-notification bug
- Fixed some bugs with the notification icon
- Added new tango based icons in various sizes.

Chaosreader is an open source tool to trace TCP/UDP/... sessions and fetch application data from snoop or tcpdump logs. This is a type of "any-snarf" program, as it will fetch telnet sessions, FTP files, HTTP transfers (HTML, GIF, JPEG, ...), SMTP emails, ... from the captured data inside network traffic logs.
A index in html file is created that links to all the session details, including realtime replay programs for telnet, rlogin, IRC, X11 or VNC sessions; and reports such as image reports and HTTP GET/POST content reports. Chaosreader can also run in standalone mode - where it invokes tcpdump or snoop (if they are available) to create the log files and then processes them. For a look at the command line options see the readme printed by the program (chaosreader --help2).
Main features:
- Reads Solaris snoop logs and four versions of tcpdump/libpcap logs
- Standalone mode generates a series of logs and then processes those
- Processes HTTP, FTP, telnet, SMTP, IRC, ... application protocols
- Processes any TCP and UDP traffic
- Processes 802.11b wireless traffic
- Processes PPPoE traffic, tun device traffic
- Retrieves transferred files from FTP and HTTP traffic
- Creates HTML and text reports to list contents of the log
- Creates realtime replay programs for telnet or IRC sessions
- Creates red/blue coloured HTML reports for 2-way sessions such as telnet and FTP
- Creates red/blue coloured HTML reports for any TCP, UDP or ICMP traffic
- Creates image reports from HTTP, FTP transfers
- Creates HTTP GET and POST reports from queries
- Creates red/blue coloured HTML hex dumps for any TCP, UDP or ICMP traffic
- Creates plain text hex dumps for any TCP, UDP or ICMP traffic
- Creates HTTP proxy logs based on observed HTTP traffic, using the squid log format
- Creates X11 realtime replay programs to playback an X11 session. (experimental).
- Creates red/blue coloured HTML reports for X11 text and keystrokes.
- Creates realtime replay programs for X11 text communication.
- Creates VNC realtime replay programs to playback a VNC session. (experimental).
- Creates HTML reports for VNC keystrokes.
- Creates realtime replay programs for VNC keystrokes.
- SSH content analysis. reports, replays and keystroke delay data files.
- Creates raw data files from TCP or UDP transfers
- Supports TCP out of sequence number delivery
- Supports IP fragmentation
- Supports IPv4 and IPv6
- Processes ICMP and ICMPv6
- Very configurable (including filtering on IPs and ports)
- Can sort data based on time, size, type or IP.
- Can skip sessions smaller than a min size.
- Runs on Solaris, RedHat, Windows, ...

libqmsg is a library implementing parts of the messaging functionality as found in the commonly used realtime microkernel operating systems, using Linux shared memory and POSIX messaging queues.

The implementation does not aim to reach the speed of original implementations, but rather to simplify software porting process and as a basis for more sophisticated solutions.

Ecamegapedal is a realtime audio processor.

Ecamegapedal is a real-time effect processor software with a graphical user interface for controlling the effect parameters. It is meant to be used as a virtual guitar-fx
or studio effect box. In addition to real-time operation, Ecamegapedal also supports reading from and writing to audio files.

All audio object and effect plugin types provided by the Ecasound libraries are supported. This includes ALSA, JACK, OSS, aRts, over 20 file formats, over 30 effect types, LADSPA plugins and multi-operator effect presets. Ecamegapedals implementation is based on Ecasound and Qt libraries.

Primary platform for running Ecamegapedal is Linux. Ecamegapedal also works on many UNIX-derived systems such as FreeBSD and Solaris.

Nautix project is a 3D realtime strategy game.
Nautix lets you command an Avatar through realistic 3D worlds.
Nautix will be a full-featured Open Source game with a 3D view, multiplayer mode, customizable levels and a lot of items like wood, stone or gold. It is both realtime strategy and roleplay game, so it features Avatars as well as large armies.
It can be played alone, in a local network or over the Internet. The 3D graphics are scalable to the speed of the computer and the needs of the player.
Enhancements:
- stabilized the whole game to provide a "first look" on its features
- integrated help browser
- new: Planets to choose & to download!
- new: Planets have "terraform"ed surface and custom colors
- improved Connection dialog
- supports now single player mode :)
- split up NautixGL into NautixGL and NautixGLcore for "reusability of code" reasons,
- removed NautixView
- sending data works, e.g. "avatar moved" or "planet request"
- improved Chat
- selection & feedback works, first (still buggy) command to Avatars: move (new class: Avatar)
- multiplayer: you can now meet your enemy...

Decibel is a realtime communication framework based on Telepathy. It is meant to integrate VoIP, text chat, CTI (computer telephone integration), and similar applications into the users desktop.

The project consists of a desktop neutral policy daemon called Houston and desktop specific components for user interaction.

Houston is a plain, non-graphical Qt application which is supposed to get started when a user logs in. It is a policy daemon, which opens communication channels for the user and starts components in response to events triggered.